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Jerome Brunet says: ==================== net: mdio: add amlogic gxl mdio mux support Add support for the MDIO multiplexer found in the Amlogic GXL SoC family. This multiplexer allows to choose between the external (SoC pins) MDIO bus, or the internal one leading to the integrated 10/100M PHY. This multiplexer has been handled with the mdio-mux-mmioreg generic driver so far. When it was added, it was thought the logic was handled by a single register. It turns out more than a single register need to be properly set. As long as the device is using the Amlogic vendor bootloader, or upstream u-boot with net support, it is working fine since the kernel is inheriting the bootloader settings. Without net support in the bootloader, this glue comes unset in the kernel and only the external path may operate properly. With this driver (and the associated change in arch/arm64/boot/dts/amlogic/meson-gxl.dtsi), the kernel no longer relies on the bootloader to set things up, fixing the problem. ==================== Link: https://lore.kernel.org/r/20230130151616.375168-1-jbrunet@baylibre.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.